<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>GraphGL - ECHARTS-GL</title>
        <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
        <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
        <link rel="stylesheet" href="./common.css">
    </head>
    <body>
        <div id="main"></div>
        <div id="toolbar">
            <button id="stop-layout">Stop layout</button>
            <button id="start-layout">Start alyout</button>
        </div>
        <script src="../node_modules/echarts/dist/echarts.js"></script>
        <script src="../node_modules/echarts/dist/extension/dataTool.js"></script>
        <script src="../dist/echarts-gl.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="js/commonUI.js"></script>
        <script>
            var chart = echarts.init(document.getElementById('main'));

            function createNodes(widthCount, heightCount) {
                var nodes = [];
                for (var i = 0; i < widthCount; i++) {
                    for (var j = 0; j < heightCount; j++) {
                        nodes.push({
                            x: Math.random() * window.innerWidth,
                            y: Math.random() * window.innerHeight,
                            name: i  + '-' + j,
                            value: 1
                        });
                    }
                }
                return nodes;
            }

            function createEdges(widthCount, heightCount) {
                var edges = [];
                for (var i = 0; i < widthCount; i++) {
                    for (var j = 0; j < heightCount; j++) {
                        if (i < widthCount - 1) {
                            edges.push({
                                source: i + j * widthCount,
                                target: i + 1 + j * widthCount,
                                value: 1
                            });
                        }
                        if (j < heightCount - 1) {
                            edges.push({
                                source: i + j * widthCount,
                                target: i + (j + 1) * widthCount,
                                value: 1
                            });
                        }
                    }
                }
                return edges;
            }

            var nodes = createNodes(50, 50);
            var edges = createEdges(50, 50);

            chart.setOption({
                series: [{
                    type: 'graphGL',
                    nodes: nodes,
                    edges: edges,
                    itemStyle: {
                        color: 'rgba(255,255,255,0.8)'
                    },
                    lineStyle: {
                        color: 'rgba(255,255,255,0.8)',
                        width: 3
                    },
                    forceAtlas2: {
                        steps: 5,
                        jitterTolerence: 10,
                        edgeWeightInfluence: 2
                    }
                }]
            });

            $('#start-layout').click(function () {
                chart.dispatchAction({
                    type: 'graphGLStartLayout'
                });
            });

            $('#stop-layout').click(function () {
                chart.dispatchAction({
                    type: 'graphGLStopLayout'
                });
            });

            $(window).resize(chart.resize);
        </script>
    </body>
</html>